ruby0.49, 160 bytes

Result

WA

Duration

533ms

Code [DL]

freq = {}
x=[]
i=0
while gets()
    for word in $_.split('/\s/')
a=word.split(" ")
    end
x[i]=a 
i=i+1
end
k=x[1][0] - x[0][0]

   printf("%d %d\n",a,x[3][2])

stdin

01 89 66
04 94 05
59 72 77
06 39 96

stdout

stderr

/volume/CODE:11: undefined method `(null)' for "04"(String)

strace